What is CVE-2026-65673?

CVE-2026-65673 is a high-severity vulnerability in Microsoft Entra Connect, classified under SQL Injection. CVSS score: 7.8/10. Published 2026-08-11.

How severe is CVE-2026-65673?

High severity. CVSS v3 base score is 7.8 out of 10.

SQL Injection in Microsoft Entra Connect

CVE-2026-65673

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Entra Connect Sync allows an authorized attacker to elevate privileges locally.

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Entra Connect — versions 1.0.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-65673?: CVE-2026-65673 is a high-severity vulnerability in Microsoft Entra Connect, classified under SQL Injection. CVSS score: 7.8/10. Published 2026-08-11.
How severe is CVE-2026-65673?: High severity. CVSS v3 base score is 7.8 out of 10.